Steam-motor



a Sheets-Sheet 1.

Patented May 80, 1882.

S. W. HUDSON.

STEAM MOTOR.

(No Model.)

By ('6 Afforney m N. PETERS. Phemumu m m. Washingtcn. n. c.

WITNESSES (No Model.) 3 Sheets-Sheet 2' S. W. HUDSON.

STEAM MOTOR. I

No 258,580. Patented May 30,1882.

Q 0N N WITNESSES I m/vnvnm Stun cw! Hudson By his Allornws y/yfwmg @ud WM @Ww Modem 3 Sheets-Sheet 3.

s. W. HUDSON.

STEAM MOTOR.

No. 258,580. v Patented May 80, 1882.

WITNESSES INVE/VTOR Samuel Jam-1mm,

1 ER& Phnloulhngnpber. wasmng'm n.c,

NITED. STATES PATENT OFrIcE.

SAMUEL W. HUDSON, OF HUDSONDALE, PENNSYLVANIA.

STEAM-MOTO R.

SPECIFICATION forming part of Letters Patent No. 258,580, dated May 30, 1882,

Application filed December 15, 1881. (No model.)

To all whom "it may concern Be it known that I, SAMUEL W. HUDSON, of Hudsondale, in the county of Carbon and State of Pennsylvania, have invented certain new and useful lmprovemen tsin Steam-Motors, of which the following is a specification.

My invention is designed more especially for compressing air for ventilating purposes. It is shown in the accompanying drawings as arranged to create a blast within a closed chamber or compartment with which the ventilating-shaft of a mine or other place to be ventilated communicates. The pipe through which the blast is blown but of the closed chamber projects into a larger pipe which extends from the exterior of the compartment inwardly. The action of the blast is to entrain or draw into the inwardly-projecting pipe air from the closed compartment, thus creating a vacuum therein; and the air from the mine constantly rising to correct this partial vacuum insures a draft through the mine and thorough ventilation. I make no claim, however, herein to the arrangement of the ventilating-shaft,

construction shown in my said patent, the

.my organization of apparatus.

ience of illustration, with the axes of the sprocket-pulleys parallel, but not coincident.

Four steam-motors, V, W, X, and Y, are arranged side by side, as described. These motors are each shown as consisting of two upright tubes, the lower portions of which are of larger diameter than the upper part. In each motor an endless chain carrying piston-heads which comparatively snugly-fit the smaller portions of the tubes passes through them and over sprocket-pulleys S S. The lower pulley, S, is mounted in suitable bearings within a sealed or closed tank filled with fiuidsay water-with which the tubes of the motor are connected, the tubes of each motor being open at the top, as shown. The air-compressing tube V is connected by a tube, A, from any suitable point of its smallest diameter with the enlarged portion of the air-compressing tube W. A similar tube, B, connects the smaller portion of the air-com pressing tube W with the enlarged portion of the air-compressing tube X of the next motor, while the smaller portion of the tube X is in turn connected with the enlarged portion of the tube Y of the next motor by a tube, 0. The steam tubes or cylinders V W X and Y of the several motors aretubularlyconnectedasfollows: Thesmaller portion of the cylinder V is connected by a tube,.M, directly with the larger part of the cylinder W der V above the connection of the tube M a tube, N, is connected with the smaller portion of the steam-cylinder W, from which a tube, 0, extends to the larger portion of the steamcylinder X From some point of the steamcylinder W above its connection with the pipes N and O a tube, P, extends to the smaller portion of the steam-cylinder X from which a tube, Q, extends to the larger portion of the cylinderY The purpose of this organization, as will hereinafter be fully set forth, is that the steam which passes up the cylinder V of the motor V will, by means of the pipes M, N, O, P, and Q, be carried to and-serve to operate the motors W, X, and Y, while the air which is carried down the compressing-tubes W, X, and Y will be transferred through the pipes A, B, and O to the compressing-pipe V of the first motor, and the sum of the work of the From some point of the cylinseveral motors be accumulated in the compressing-pipe V to producethe requisite blast. From a pointin each of the steam-cylinders It will be obvious that the compressed air of all the motors will be accumulated in the pipe V, and will be delivered from thence above the pipeconnections described I prothrough the blast-pipe. This operation can vide exhaust-openings D, which communicate be performed, as will readily be seen, because with a common exhaust-pipe, E, which delivof the fact that no amount of pressure between ers the steam thus collected into the steainany two piston-heads within the smaller porcylinderZ ofthemotor Z. The lowersprocket, tions of any of the tubes of the motors will S, of this motor is mounted in suitable bearaffect the operation of the machines, because ings within its tank,while its upper sprocket, it will be obvious that the pressure will be S, is secured to the shaft on which the upper equal in both directions against both pistonsprockets of the other machines are secured. heads, and will therefore be neutral. The The motor Z is provided with an endless chain combined exhaust-steam from the four motors and piston-heads, and a tube, Z. The upper is carried by the tube E to the steam-cylinder 8o ends of the tubes, however, are not open to Z driving the piston-heads up it. The steam the atmosphere, but are connected by a dome, will be carried around down the tube D and Z which includes the sprocket S. This dome will be partially condensed by the spray or jet should be suitably packed where the shaft S at z, and will be finally delivered into the conpasses through it. The tank in which the densingpi ie Z and condensed. tubes of the motor Z are partly submerged It will thus be seen that practically all the should be left open. steam introduced into the tirst motor will be I introduce at the top of the tube Z, at z, a utilized, the amount which escapes from the condensingjetorspray. Just belowthe smaller upper open ends of the several cylinders being portion of this tube is a pipe, Z into which very trifling. The power of the machine Z is 0 any remaining steam enters. A condensing applied to the shaft S as is the power of all jet or sprayis introduced at thetop of thispipe the other machines, and thus the combined from the pipe Z action of them all produces a requisite uniform The operation of the apparatus thus far demotion of all the parts. scribed is as follows: The steam from any Suitable stop-cocks, 1%, are placed on each suitable generator is introduced at the opentank V, \V, X and Y to draw off water to lug V into the cylinder V, and operates, as regulate the amount within the tank, while of will be understood, to drive up the pistoncourse any desired quantity of water may he heads therein and rotate the sprockets. The introduced by means of a hose through the piston-heads entering the tube V carry air top of the pipes. Of course the length ofthe ICO down it. A considerable portion of the steam enlarged portions of the pipes V, W, X, and ascending the cylinder V is delivered by the Y mustbc suflicient to prevent the water pipe M to the cylinder \V and causes the piswhich will be driven up into them by the ton-heads to be driven up therein, the effect pressure of the steam from covering the airof which is to draw air down the tube W, outlet. It is not necessary to make the piswhich airis delivered through the pipeAinto ton-heads fit the several tubes or cylinders the compressing-tube V of the first motor. It very tightly, as the water which is carried up should be noted at this point that thediameters by the pistons forms a suflicient packing. To of the tubes of the motor are greater than make this effective, however, it is desirable to those of V, and that the tubes of each of the somewhat elongate the pistons; but in com- I10 succeeding motorsincreasein diameter. The pressing air the lengthening of the pistons effect of this is that a greater volume of air occupies the space within the tubes and rewill be carried down the compressing-tube ot' duces the working capacity of the machine. each succeeding motor, and. this volume be- To remedy this I form the piston-heads cuping delivered into the smaller preceding tube shaped, as shown in the motor V. By this n5 creates a greater pressure therein than would means I attain the requisite length to insure otherwise be the case. I prefer to thus eona proper packing, and at the same time lose struct the motors, though they may be made comparatively little space. There the appaof the same size. ratus is, however, used solely as a motor, it is Returning now to theoperation ot' the steam, desirable that the pistonheads should be of 12 aportion ot' the steam not carried from the considerable length, and that the spaces becylinder V by the pipe M is carried by the tween them should be comparatively small. pipe N to the cylinder and is there min- Piston-heads H of this kind are shown in the gled with the steam rising in that cylinder, motor Z. These piston-heads may be castholand is carried by the pipeOto the cylinder X low and turned or ground down, and are prefcausing it to operate, as will be understood, erably connected by links I to form the chain. and deliver the compressed air through the This is ofimportance, because the pressure of pipe B to the tube \"V. The steam from the the steam is just as effective within the small cylinders IV and X is similarly carried to the space between the piston-heads as they are cylinder Y and that motor is caused to roforced up by the steam in the tube as it would 1 o tate, as described, delivering the compressed be in the larger spaces. Less steam, however, air through the pipe 0 to the tube X. is carried up between the pistonheads, and

such a construction is therefore advantageous and desirable.

The apparatus herein described is shown as chines, as may be desired, and motors similar to V, W, X, and Y may be used alone or in connection with the motor Z.

The blast generated by the apparatus above described may be used for any purpose to which a blast of that character may be applied. For instance,where the apparatusisused, as shown, for ventilating a mine, the blast may be used, or such portion of it as is necessary, for the smelting-furnaces, provided that the character of the blast obtained is such as not to impair the quality of the ore being treated. In almost every instance, however, the blast would be applicable to furnaces for steam-boilers for heatingor for applying power in connection with the working of the mine. In order to thoroughly lubricate the working parts of the machinery, I place in the tube of each motora sufficient quantity of oil. The oil of course remains upon the surface of the water in the tubes, and as the chain and pistons revolve they pass through it, and the parts are thus thoroughly lubricated, and as practically all portions of the machinery in contact with the water are kept thoroughly oiled the parts will not rust and become stiff, but are kept clean and operative.

I have described my improved apparatus as a steam-motor, but it is of course equally operative as a compressed-air motor, and I contemplate so using it. In that event, however, condensation in the final machine would be impossible, and the use of the condensing-jet and condensers therefore unnecessary, so that when the machine is thus used the pipe-Z should be left open to the atmosphere.

When the machine is designed for compressed air only I would prefer to dispense with the smaller portion of the tube Z and the dome Z and have the tank sealed, as is the case with the other motors.

I am aware that heretofore in engines of this characterithasbeen proposedtousemachineryoil as a seal and fluid. abutment of the engine, and I do not therefore make any claim to such subject-matter, but limit this branch of my invention as specifically set forth in my claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination of two or more distinct and independent motors, substantially such as described,connected by steam-pipes and so arranged that the waste steam from the first motor serves to operate the other motor or motors, as set forth.

2. The combination of the motors V WX Y, their connecting steam-pipes, the motor Z, and. the steam-pipe E, substantially as set forth.

3. The combination of the several independent motors, their sprockets S, the connecting steam pipes, and the common shaft S substantially as set forth.

4. The combination of the motors V W X Y,"

having steam-cylinders and air-compressing tubes, their connecting steam-pipes, and their connecting air-pipes, substantially as set forth.

5. The combination of the steam-cylinder, the air-compressing tube, the endless chain, piston-heads and sprockets, a fluid seal, and a closed or sealed tank, substantially as set forth.

6. The combination of the steam-cylinder, the air-compressing tube, the endless chain, the cup-shaped piston-heads, sprocket-pulleys, and a fluid seal,-substantially as set forth.

7. The combination of thesteam-cylinder, the sprocket pulleys, the elongated pistonheads, having comparatively small spaces between them, the endless chain or connectinglinks, and a fluid seal, substantially as set forth.

In testimony whereof I have hereunto subscribed my name this 25th day of November,

SAMUEL W. HUDSON. Witnesses:

GEO. R. HERRIOK, E. O. DAVIDSON. 

